【摘要】：為形成可調(diào)節(jié)的溫差,該文設(shè)計一種多矩形空腔陣列,陣列由3個分體單元組成,每個單元包含有確定深度和寬度比的矩形空腔。使用紅外熱像儀對陣列上端面拍攝熱圖像,不同單元的表觀溫度各不相同。通過理論計算給出單元表面發(fā)射率的計算公式,通過實驗測量單元表面發(fā)射率,并將理論計算值與實驗測量值進行對比。結(jié)果表明:在深度和寬度較大時,計算值與測量值較為接近,在深度和寬度較小時兩者差值較大。實驗證實多矩形空腔陣列可用于紅外成像設(shè)備的測試和校準等用途。
[Abstract]:In order to form the adjustable temperature difference, a multi-rectangular cavity array is designed. The array consists of three split elements, each containing a rectangular cavity with a ratio of depth to width. The infrared thermal imager is used to photograph the thermal image on the end face of the array, and the apparent temperature of different units is different. The calculation formula of unit surface emissivity is given by theoretical calculation, and the emissivity of unit surface is measured experimentally, and the theoretical calculation value is compared with the experimental measurement value. The results show that the calculated value is close to the measured value when the depth and width are larger, and the difference between the calculated value and the measured value is larger when the depth and width are small. Experimental results show that the multi-rectangular cavity array can be used for the testing and calibration of infrared imaging equipment.
【作者單位】： 中國計量大學計量測試工程學院;
【基金】：國家科技重大專項(2015ZX02101)
【分類號】：TN219

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